docs: Add more practical examples

README.md

@@ -18,6 +18,36 @@ optional arguments:
   -h, --help     show this help message and exit
 ```
 
+## Example
+
+```
+> cat tilelist.txt
+0/0/0
+0/1/0
+> cat tilelist.txt | maps-deduped-tilelist 0 1
+1/2/1
+1/0/1
+1/1/0
+0/1/0
+1/2/0
+0/0/0
+1/3/1
+1/0/0
+1/3/0
+1/1/1
+> maps-deduped-tilelist 0 1 ./tilelist.txt
+1/2/1
+1/0/1
+1/1/0
+0/1/0
+1/2/0
+0/0/0
+1/3/1
+1/0/0
+1/3/0
+1/1/1
+```
+
 ## Context
 
 This CLI tool is built as a way to generate a deduplicated tile list of distinct tiles based on the `imposm3` expired tile output. The reason behind this is to deduplicate tiles and optimize tile pregeneration by avoiding generating the same tile multiple times.